
Ha but no actually. !!!
I was asked this question when trying out for a certain tech support team at my old job. This team is a "industry leader in Audio, Video and Still Image Multimedia Design & Production!!!" OMG and many of you use it's products. I can't tell you who tho >_> since I don't know. Fuck it was for Adobe, fuck that.
Anyways it was doing Techsupport for Adobe.
Eh hem.. My old supervisor was transfered over there to head the team. The Adobe team = big $$


Anyways!!! I was like "I make AMVs, I mess with Photoshop, I've drawn stick figures about this supervisor(these were funny mind you and he enjoyed them :p), I should go apply.". So I did and he asked me some questions about images and stuff.
Then!! he asked me "Describe what a layer is with out actually using the word layer.". Fuck >_<! I forget how I described it, but I sorta had a brain freeze.
So all you A/V wizards, or well maybe not wizards >_>. Describe what a layer is with out actually using the word layer. Describe it in the way you would to you would explain to your mom after she just installed Photoshop. >_> Though I wouldn't let my mom near MS paint with a five foot pole(I am so abusive >_<), much less Photoshop.
Define what a layer is without using the word 'layer':